DSCResources/MSFT_O365Group/MSFT_O365Group.psm1
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function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $MailNickName, [Parameter(Mandatory = $true)] [System.String] $DisplayName, [Parameter()] [System.String[]] $ManagedBy, [Parameter()] [System.String] $Description, [Parameter()] [System.String[]] $Members, [Parameter()] [ValidateSet("Present", "Absent")] [System.String] $Ensure = "Present", [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] $GlobalAdminAccount ) Write-Verbose -Message "Setting configuration of Office 365 Group $DisplayName" #region Telemetry $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new() $data.Add("Resource", $MyInvocation.MyCommand.ModuleName) $data.Add("Method", $MyInvocation.MyCommand) Add-M365DSCTelemetryEvent -Data $data #endregion $nullReturn = @{ DisplayName = $DisplayName MailNickName = $Name Description = $null ManagedBy = $null GlobalAdminAccount = $null Ensure = "Absent" } Test-MSCloudLogin -CloudCredential $GlobalAdminAccount ` -Platform AzureAD $ADGroup = Get-AzureADGroup | Where-Object -FilterScript {$_.MailNickName -eq $MailNickName} if ($null -eq $ADGroup) { $ADGroup = Get-AzureADGroup | Where-Object -FilterScript {$_.DisplayName -eq $DisplayName} if ($null -eq $ADGroup) { Write-Verbose -Message "Office 365 Group {$DisplayName} was not found." return $nullReturn } } Write-Verbose -Message "Found Existing Instance of Group {$($ADGroup.DisplayName)}" try { $membersList = Get-AzureADGroupMember -ObjectId $ADGroup.ObjectId Write-Verbose -Message "Found Members for Group {$($ADGroup.DisplayName)}" $owners = Get-AzureADGroupOwner -ObjectId $ADGroup.ObjectId Write-Verbose -Message "Found Owners for Group {$($ADGroup.DisplayName)}" $ownersUPN = @() if ($null -ne $owners) { # Need to cast as an array for the test to properly compare cases with # a single owner; $ownersUPN = [System.String[]]$owners.UserPrincipalName # Also need to remove the owners from the members list for Test # to handle the validation properly; $newMemberList = @() foreach ($member in $membersList) { if (-not $ownersUPN.Contains($member.UserPrincipalName)) { $newMemberList += $member.UserPrincipalName } } } $description = "" if ($null -ne $ADGroup.Description) { $description = $ADGroup.Description.ToString() } $returnValue = @{ DisplayName = $ADGroup.DisplayName MailNickName = $ADGroup.MailNickName Members = $newMemberList ManagedBy = $ownersUPN Description = $description GlobalAdminAccount = $GlobalAdminAccount Ensure = "Present" } Write-Verbose -Message "Retrieved the following instance of the Group:" foreach ($value in $returnValue.GetEnumerator()) { Write-Verbose -Message "$($value.Key) = $($value.Value)" } return $returnValue } catch { $Message = "An error occured retrieving info for Group $DisplayName" New-M365DSCLogEntry -Error $_ -Message $Message -Source $MyInvocation.MyCommand.ModuleName } return $nullReturn } function Set-TargetResource { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [System.String] $MailNickName, [Parameter(Mandatory = $true)] [System.String] $DisplayName, [Parameter()] [System.String[]] $ManagedBy, [Parameter()] [System.String] $Description, [Parameter()] [System.String[]] $Members, [Parameter()] [ValidateSet("Present", "Absent")] [System.String] $Ensure = "Present", [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] $GlobalAdminAccount ) Write-Verbose -Message "Setting configuration of Office 365 Group $DisplayName" #region Telemetry $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new() $data.Add("Resource", $MyInvocation.MyCommand.ModuleName) $data.Add("Method", $MyInvocation.MyCommand) Add-M365DSCTelemetryEvent -Data $data #endregion Test-MSCloudLogin -CloudCredential $GlobalAdminAccount ` -Platform ExchangeOnline $currentGroup = Get-TargetResource @PSBoundParameters if ($Ensure -eq "Present") { $CurrentParameters = $PSBoundParameters $CurrentParameters.Remove("Ensure") $CurrentParameters.Remove("GlobalAdminAccount") if ($currentGroup.Ensure -eq "Absent") { Write-Verbose -Message "Creating Office 365 Group {$DisplayName}" $groupParams = @{ DisplayName = $DisplayName Notes = $Description Owner = $ManagedBy } $groupParams.Owner = $ManagedBy[0] if ("" -ne $MailNickName) { $groupParams.Add("Name", $MailNickName) } Write-Verbose -Message "Initiating Group Creation" Write-Verbose -Message "Owner = $($groupParams.Owner)" New-UnifiedGroup @groupParams Write-Verbose -Message "Group Created" if ($ManagedBy.Length -gt 1) { for ($i = 1; $i -lt $ManagedBy.Length; $i++) { Write-Verbose -Message "Adding additional owner {$($ManagedBy[$i])} to group." if ("" -ne $Name) { Add-UnifiedGroupLinks -Identity $Name -LinkType Owner -Links $ManagedBy[$i] } else { Add-UnifiedGroupLinks -Identity $DisplayName -LinkType Owner -Links $ManagedBy[$i] } } } } if ("" -ne $MailNickName) { $groupLinks = Get-UnifiedGroupLinks -Identity $MailNickName -LinkType "Members" } else { $groupLinks = Get-UnifiedGroupLinks -Identity $DisplayName -LinkType "Members" } $curMembers = @() foreach ($link in $groupLinks) { if ($link.Name -and $link.Name -ne $currentGroup.ManagedBy) { $curMembers += $link.Name } } if ($null -ne $CurrentParameters.Members) { $difference = Compare-Object -ReferenceObject $curMembers -DifferenceObject $CurrentParameters.Members if ($null -ne $difference.InputObject) { Write-Verbose -Message "Detected a difference in the current list of members and the desired one" $membersToRemove = @() $membersToAdd = @() foreach ($diff in $difference) { if (-not $ManagedBy.Contains($diff.InputObject)) { if ($diff.SideIndicator -eq "<=" -and $diff.InputObject -ne $ManagedBy.Split('@')[0]) { Write-Verbose "Will be removing Member: {$($diff.InputObject)}" $membersToRemove += $diff.InputObject } elseif ($diff.SideIndicator -eq "=>") { Write-Verbose "Will be adding Member: {$($diff.InputObject)}" $membersToAdd += $diff.InputObject } } } if ($membersToAdd.Count -gt 0) { if ("" -ne $MailNickName) { Write-Verbose "Adding members {$($membersToAdd.ToString())}" Add-UnifiedGroupLinks -Identity $MailNickName -LinkType Members -Links $membersToAdd } else { Write-Verbose "Adding members {$($membersToAdd.ToString())} with DisplayName" Add-UnifiedGroupLinks -Identity $DisplayName -LinkType Members -Links $membersToAdd } } if ($membersToRemove.Count -gt 0) { if ("" -ne $name) { Remove-UnifiedGroupLinks -Identity $MailNickName -LinkType Members -Links $membersToRemove } else { Remove-UnifiedGroupLinks -Identity $DisplayName -LinkType Members -Links $membersToRemove } } } } } elseif($Ensure -eq "Absent") { try { [array]$existingO365Group = Get-UnifiedGroup -Identity $currentGroup.MailNickName } catch { Write-Error -Message "Could not find group $($currrentGroup.MailNickName)" } if($existingO365Group.Length -eq 1) { Write-Verbose -Message "Removing O365Group $($existingO365Group.Name)" Remove-UnifiedGroup -Identity $existingO365Group.Name -confirm:$false -Force } else { Write-Verbose -Message "There was more than one group identified with the name $($currentGroup.MailNickName)." Write-Verbose -Message "No action taken. Please remove the group manually." } } } function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $MailNickName, [Parameter(Mandatory = $true)] [System.String] $DisplayName, [Parameter()] [System.String[]] $ManagedBy, [Parameter()] [System.String] $Description, [Parameter()] [System.String[]] $Members, [Parameter()] [ValidateSet("Present", "Absent")] [System.String] $Ensure = "Present", [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] $GlobalAdminAccount ) Write-Verbose -Message "Testing configuration of Office 365 Group $DisplayName" $CurrentValues = Get-TargetResource @PSBoundParameters Write-Verbose -Message "Current Values: $(Convert-M365DscHashtableToString -Hashtable $CurrentValues)" Write-Verbose -Message "Target Values: $(Convert-M365DscHashtableToString -Hashtable $PSBoundParameters)" $TestResult = Test-Microsoft365DSCParameterState -CurrentValues $CurrentValues ` -Source $($MyInvocation.MyCommand.Source) ` -DesiredValues $PSBoundParameters Write-Verbose -Message "Test-TargetResource returned $TestResult" return $TestResult } function Export-TargetResource { [CmdletBinding()] [OutputType([System.String])] param ( [Parameter(Mandatory = $true)] [System.Management.Automation.PSCredential] $GlobalAdminAccount ) $InformationPreference = 'Continue' #region Telemetry $data = [System.Collections.Generic.Dictionary[[String], [String]]]::new() $data.Add("Resource", $MyInvocation.MyCommand.ModuleName) $data.Add("Method", $MyInvocation.MyCommand) Add-M365DSCTelemetryEvent -Data $data #endregion $content = '' Test-MSCloudLogin -CloudCredential $GlobalAdminAccount ` -Platform AzureAD $groups = Get-AzureADGroup -All $true | Where-Object -FilterScript { $_.MailNickName -ne "00000000-0000-0000-0000-000000000000" } $i = 1 $organization = "" $principal = "" # Principal represents the "NetBios" name of the tenant (e.g. the M365DSC part of M365DSC.onmicrosoft.com) if ($GlobalAdminAccount.UserName.Contains("@")) { $organization = $GlobalAdminAccount.UserName.Split("@")[1] if ($organization.IndexOf(".") -gt 0) { $principal = $organization.Split(".")[0] } } foreach ($group in $groups) { $params = @{ GlobalAdminAccount = $GlobalAdminAccount DisplayName = $group.DisplayName ManagedBy = "DummyUser" MailNickName = $group.MailNickName } Write-Information " [$i/$($groups.Length)] $($group.DisplayName)" $result = Get-TargetResource @params $result.GlobalAdminAccount = "`$Credsglobaladmin" $content += " O365Group " + (New-GUID).ToString() + "`r`n" $content += " {`r`n" $partialContent = Get-DSCBlock -Params $result -ModulePath $PSScriptRoot $partialContent = Convert-DSCStringParamToVariable -DSCBlock $partialContent -ParameterName "GlobalAdminAccount" if ($partialContent.ToLower().IndexOf($organization.ToLower()) -gt 0) { $partialContent = $partialContent -ireplace [regex]::Escape("@" + $organization), "@`$OrganizationName" } if ($partialContent.ToLower().IndexOf($principal.ToLower()) -gt 0) { $partialContent = $partialContent -ireplace [regex]::Escape("@" + $principal), "@`$(`$OrganizationName.Split('.')[0])" } $content += $partialContent $content += " }`r`n" $i++ } return $content } Export-ModuleMember -Function *-TargetResource |